两淮煤田煤层气与煤炭勘查开发时空配置关系

Spatial-temporal relationship for exploration and development of CBM and coal in Huainan-Huaibei coalfield

  • 摘要: 煤矿区煤层气勘查开发既存在煤炭、煤层气(瓦斯)勘探程度高的优势,也存在煤炭与煤层气矿业权大面积重置的劣势,因此进行煤层气与煤炭勘查开发时空配置关系研究,对实现煤矿区煤层气与煤炭安全高效协调开发具有非常重要的现实意义。综合分析煤炭开发时空接替规律和煤炭、煤层气矿业权设置现状,以煤炭矿井或勘查区为基本地质单元,两淮煤田可划分为7类性质不同的区块。在系统分析不同区块煤炭、煤层气勘查开发时序和煤层气开发方式的基础上,结合煤层气地质条件,以勘查开发的空间布局、时序安排为主线,深入探讨了两淮煤田7类区块的煤层气与煤炭勘查开发原则、煤层气开发方式、重点区块分布、含气面积及资源量等,建立了煤层气与煤炭勘查开发的时空配置模式,为矿业权重叠问题提供了技术解决方案。

     

    Abstract: In terms of the exploration of coal and coalbed methane, the advantage is a high exploration degree of coal and coalbed methane (CBM) and the disadvantage is a high overlap rate of mining right for CBM exploration and development in a coal mining area.Therefore, the study of spatial-temporal relationship of exploration and development is of significance for the safe and efficient coordination development of CBM and coal in a coal mining area.Based on the comprehensive analysis of the spatial-temporal replacement characteristics of coal and the present mining right situation of coal and CBM, with coal mine or exploration area as a basic unit, Huainan-Huaibei coalfield can be divided into seven different blocks.Based on the system analysis of the exploration and development sequence of CBM and coal and the development mode of CBM, combined with CBM geological conditions, with the spatial and sequence arrangement as mainline, this paper discussed the exploration and development principle of CBM and coal, the development mode of CBM, the distribution of key blocks, the gas bearing area, and the quantity of resource, and built up the pattern of spatial-temporal collocation for CBM and coal.The study provided a technical solution for the mining right overlap, and also provided a theoretical direction for the coordinated development of CBM and coal in Huainan-Huaibei coalfield.

     

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